No one can change the weather. Nobody can control the weather. But if we read correctly the signs around us, we can tell what the more important changes in the weather will be. This way of telling what the weather will be like on the following day or two is called weather forecasting(天气预报).
For many centuries and in all countries, people have studied the weather and tried to make weather forecasting. Rings around the sun are a sign of coming rain. That many people feel their joints(关节) hurt is a sign of wet weather. Some birds fly high if fine weather is coming, but they fly near the ground if rainy or stormy weather is on the way. If you see a rainbow during rainy weather, this is a sign that the weather will become clear and fine. Such rainbows come in the evening. If the stars twinkle clearly at night, then fine weather will continue. If a fog appears in the morning just above a river, then the day will be warm. If the sunset is mostly red in colour, then the following day will be fine. If a rainbow appears in the morning, rainy weather will probably come.
Most of the above sayings have been made by the people who have used their eyes and brains to make weather forecasting.

A young woman was driving through the lonely countryside. It was dark and raining. Suddenly she saw an old woman by the side of the road, holding her hand out as if she wanted a lift.  “I can't leave her out in this weather.” the woman said to herself, so she stopped the car and opened the door. “Do you want a lift?” she asked. The old woman nodded and climbed into the car. After a while, she said to the old woman, “Have you been waiting for a long time?” The old woman shook her head, “Strange.” thought the young woman.  She tried again, “Bad weather for the time of year,” she said. The old woman nodded. No matter what the young woman said, the hitchhiker(搭车者) gave no answer except for a nod of the head or a shrug.

Then the young woman noticed the hitchhiker's hands, which were large and hairy. Suddenly she realized that the hitchhiker was actually a man! She stopped the car. “I can't see out of the rear screen,” she said, “Would you mind clearing it for me?”

The hitchhiker nodded and opened the door. As soon as the hitchhiker was out of the car, the terrified young woman raced off.

When she got to the next village she pulled up. She noticed that the hitchhiker had left his handbag behind. She picked it up and opened it. She gave a gasp(喘息), inside the bag was a gun.

1.What made the young woman feel strange about the old woman?

A．That she gave no answer to her questions.

B．That she was unable to speak.

C．That she kept nodding her head

D．That she had large and hairy hands.

2. A "lift" in the passage means ___________.

A．an elevator

B．an act of raising something

C．a ride in the car

D．help

3. The hitchhiker left the bag with a gun in it behind because ____.

A．he wanted to give her a warning

B．he had not expected that the woman would leave him behind in the rain

C．it was his present for her

D．he wanted to kill her with the gun

4.Why did the young woman driver suddenly feel the hitchhiker was a man when she talked to the woman?

A．The woman only nodded her head, but no words

B．She noticed the hitchhiker's hands, which were large and hairy.

C．Because it was dark and raining

D．Because she found the gun in the woman’s handbag.

The heart of Mexico is a high, oval valley surrounded by mountains. Once, forests covered the mountainsides, and broad, shining lakes covered nearly all the valley floor. Now, the mountains are bare and scarred with erosion（侵蚀）, and much of the valley floor is dry and dusty.

Cortez and his Spanish soldiers were the first Europeans to enter this valley. They saw the thriving Aztec city of Tenochtitlan rising from an island in one of the lakes. Surrounding it were green floating gardens. The Spaniards said it was as beautiful as a dream. Then the conquest  began. 

By 1521, when the Spaniards had conquered the fierce Aztecs, the island city was in ruins. Cortez decided to rebuild it after the pattern of European cities. Using the conquered Aztecs as slave laborers, Cortez built the new city, now Mexico City, in just four years.

“But a generation had scarcely passed after the conquest before a sad change came over these scenes so beautiful,” writes one historian. The broad, shining lakes began to dry up.

Modern historians believe that Cortez began the destruction of the valley’s lakes when be ordered the city rebuilt. A great deal of charcoal was needed to burn the limestone (石灰石) from which cement (水泥) and mortar were made. Wood was needed to finish the interiors of the buildings.

The mountainside forests were destroyed to provide the charcoal and wood. Once the sloped were bare, rainfall o longer seeped (渗漏) slowly into the earth to feed the springs that filled the valley’s lakes. Instead, rainfall poured off the mountainsides the city from floods, later rulers made a cut through the mountains so that the water drained away into another valley. Mexico City, once an island, had become a city of a dry plain.

The underlined word “thriving” in the second paragraph means _______.

A. developing successfully          B. increasing

C. failing                         D. growing little

Which statement does this article lead you to believe?

Keeping nature’s balance is not important any more.

Men thought nature’s resources would last forever.

New forests always automatically replace old ones.

The Aztecs didn’t begin to flourish until Cortez came.

Why did later rulers cut through the mountains ?

They wanted to fill the city with rainwater.

They wanted the valleys to flood regularly.

They wanted to plant more trees.

They wanted to protect the city from floods.

One the whole, the article tells about ______.

Mexico as it looked when it was a European city

Modern historians who write about Mexico City

Mexico city before and after the Spaniards came

The beautiful scenery in Mexico

What is the author’s purpose of writing this article?

A .To tell the beauty and ugliness of Mexico City

B. To introduce the terrible change of Mexico City

C. To explain how Mexico City changed

D. To make people aware of the importance of nature balance

Going to school means learning new skills and facts in different subjects. Teachers teach and students learn, and many scientists are interested in finding ways to improve both teaching and learning processes.
Sian Beilock and Susan Leving, two psychologists at the University of Chicago, are trying to learn about learning. In a new study about the way kids learn math in elementary school, Beilock and Levine found a surprising relationship between what female teachers think and what female students learn: If a female teacher is uncomfortable with her own math skills, then her female students are more likely to believe that boys are better than girls at math. “If these girls keep getting math-anxious female teachers in later grades, it may create a snowball effect on their math achievement,” Levine told Science News. The study suggests that if these girls grow up believing that boys are better at math than girls are, then these girls may not do as well as they would have if they were more confident.
Just as students find certain subjects to be difficult, teachers can find certain subjects to be difficult to learn—and teach. The subject of math can be particularly difficult for everyone.
The new study involved 65 girls, 52 boys and 17 first-and second-grade teachers in elementary schools in the Midwest. The students took math achievement tests at the beginning and end of the school year, and the researchers compared the scores.
The researchers also gave the students tests to tell whether the students believed a math superstar had to be a boy. Then the researchers turned to the teachers: To find out which teachers were anxious about math, the researchers asked the teachers how they felt at times when they came across math, such as when reading a sales receipt. A teacher who got nervous looking at the numbers on a sales receipt, for example, was probably anxious about math.
Boys, on average, were unaffected by a teacher’s anxiety. On average, girls with math-anxious teachers scored lower on the end-of-the-year math tests than other girls in the study did. Plus, on the test showing whether someone thought a math superstar had to be a boy, 20 girls showed feeling that boys would be better at math—and all of these girls had been taught by female teachers with math anxiety.
According to surveys done before this one, college students who want to become elementary school teachers have the highest levels of anxiety about math. Plus, nine of every 10 elementary teachers are women, Levine said.
【小题1】Sian Beilock and Susan Levine carried out the new research in order to ___________.

Going to school means learning new skills and facts in different subjects. Teachers teach and students learn, and many scientists are interested in finding ways to improve both teaching and learning processes.

Sian Beilock and Susan Leving, two psychologists at the University of Chicago, are trying to learn about learning. In a new study about the way kids learn math in elementary school, Beilock and Levine found a surprising relationship between what female teachers think and what female students learn: If a female teacher is uncomfortable with her own math skills, then her female students are more likely to believe that boys are better than girls at math. “If these girls keep getting math-anxious female teachers in later grades, it may create a snowball effect on their math achievement,” Levine told Science News. The study suggests that if these girls grow up believing that boys are better at math than girls are, then these girls may not do as well as they would have if they were more confident.

Just as students find certain subjects to be difficult, teachers can find certain subjects to be difficult to learn—and teach. The subject of math can be particularly difficult for everyone.

The new study involved 65 girls, 52 boys and 17 first-and second-grade teachers in elementary schools in the Midwest. The students took math achievement tests at the beginning and end of the school year, and the researchers compared the scores.

The researchers also gave the students tests to tell whether the students believed a math superstar had to be a boy. Then the researchers turned to the teachers: To find out which teachers were anxious about math, the researchers asked the teachers how they felt at times when they came across math, such as when reading a sales receipt. A teacher who got nervous looking at the numbers on a sales receipt, for example, was probably anxious about math.

Boys, on average, were unaffected by a teacher’s anxiety. On average, girls with math-anxious teachers scored lower on the end-of-the-year math tests than other girls in the study did. Plus, on the test showing whether someone thought a math superstar had to be a boy, 20 girls showed feeling that boys would be better at math—and all of these girls had been taught by female teachers with math anxiety.

According to surveys done before this one, college students who want to become elementary school teachers have the highest levels of anxiety about math. Plus, nine of every 10 elementary teachers are women, Levine said.

1.Sian Beilock and Susan Levine carried out the new research in order to ___________.

2.The underlined part in paragraph 2 most probably means that girls may ___________.

3. In the study, what were the teachers required to do?

4.What is the finding of the new study?

5. Which of the following is TRUE according to the text?